Touch *.in outputs only if output actually changed about autosetup

[msteveb]

Actually I was surprised it didn't already work this way. Try the following minor patch.

diff --git a/lib/system.tcl b/lib/system.tcl
index e792151..a753340 100644
--- a/lib/system.tcl
+++ b/lib/system.tcl
@@ -222,9 +222,9 @@ proc make-template {template {out {}}} {
                }
                lappend result $line
        }
-       writefile $out [string map $mapping [join $result \n]]\n
-
-       msg-result "Created [relative-path $out] from [relative-path $template]"
+       write-if-changed $out [string map $mapping [join $result \n]]\n {
+               msg-result "Created [relative-path $out] from [relative-path $template]"
+       }
 }

 # build/host tuples and cross-compilation prefix

[tangentsoft]

Verified, thank you!